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Finding the Fourth Proportional to 539,671.39, 808,216.54 and 311,274.64

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Solution

The fourth proportional to 539,671.39, 808,216.54 and 311,274.64 is: 466,167.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,671.39 : 808,216.54 = 311,274.64 : x
  2. Step 2: Convert to fraction form
    539,671.39/808,216.54 = 311,274.64/x
  3. Step 3: Cross multiply
    539,671.39x = 808,216.54 × 311,274.64
  4. Step 4: Simplify right side
    539,671.39x = 251,577,310,051.79
  5. Step 5: Solve for x
    x = 251,577,310,051.79/539,671.39
  6. Step 6: Final answer
    x = 466,167.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.